This stopped my chatter!

[jbow]

I just got my F75 yesterday and was fooling around with all the settings while I hunted. I don't know yet how to notch in/out. I noticed that when I started to use it, it was really queit and smooth but later in the afternoon it was chattering. I could not get it to stop. I could still hunt and find things but it was chattering. I lowered the sens and it just chattered queiter, not less. I went out this AM to check some TID numbers on some of my previous finds and I still could not get it to stop chattering, no matter what I did. Even with the sens WAY down. Then i noticed that some of the notch settings were in/out. My manual was inside and I could not figure out how to get the notch settings off so I turned it off and reset it by turning it back on with the button mashed and the toggle pushed. The notch settings went off and it was agoan dead quiet! Even with the sens on 80... not a chirp unless I went over a target.
So, if yours is chattering, look and see if you have anything notched in/out and try a reset.
I don't know why using the notch would make it chatter but I know mine does chatter if I turn the disc below 5 or above 20 no matter where I set the sens. It also chatters in JE unless I turn the sens down to 25 or so.
I sent an email to FT to ask if this is normal. I'll let you know what they have to say.

Now... to the manual!

Julien

 

[Chris(SoCenWI)]

Julian,

Not sure if it was the notching that caused the chatter or something else that was reset when you went back to the factory defaults.

But the 5 to 20 is correct. In DE mode this discrimination range apparently kicks down the sensitivity amplification. Below 5 or above 20 I might only be able to run 25 sense like you, within the 5-20 range can kick it up to 50-60; depends on proximity to noise sources. I get roughly the same depth at either setting. In JE (and other modes?) this less sensitive notch doesn't exist.

Can anyone explain why Fisher did this?

Chris

 

[rink123]

Thx m8 some time mine dos this for no reason to.

 

[jbow]

me neither now. It began to do it again and there were no notches this time. I reset it again and it went quiet again. I will use it for a while and see if I can figure out what it is. I hope I do not have to send it back.
It is the only machine I have that can hit and id a quarter I have at 12" in the yard. My SovereignGT cannot hit it and neither can my Tejon. The T2 does not even chirp at it, none of them do, but the F75 both hits and id's it. The id is not steady and not where it should be but it does run up in the 70s.

Hmmm...

Julien

 

[North Georgia Relics]

or switching to JE before it starts chattering?

 

[jbow]

I'm leaving it in DE. I may have put it in JE momentarily but it chatters in DE after a bit of use, then I reset and it stops.
I really hope that I don't have a problem.
I'm going to try it for a few weeks to make sure I am not doing something wrong.
Do you use one, are you nearby?
I am in Cartersville.

J

 

[Jeb NWR]

Hi Julien, I just read your post and wondered why you didn`t give us All the settings you were presently using when you were detecting for the first time as it would help us to know as to what was happening maybe ? Had you moved the Notch from one (1) at all ? What Tone were you in . Using more than two tones for a new user to the F75 CAN possibly be confusing as you get quite a few Falsing noises going on about the 4 tone.Were you using JE a lot as that can be Chattery if you use lots of Sensitivity .
Just give This a go........... Make sure when you first Fast grab that the ground your doing it over is a clean bit free of any Iron for starters. Just take a Quick peep at your Fe304 Bar and see where the reading is . See if your reading is telling you you have a High mineralisation reading (as it will be interesting on that, to see how high to set your Sensitivity)
Set Detector on...
Sens - 65.
Discrim - 16.
Notch -1.
Tones 2f.
Process - DE.
This is a pretty "Basic setting", which should give you a smooth running ability.
Where were you first Detecting also ? was it near to ANYWHERE with Electricity Wires (high Voltage , Over head or Underground) running near to you ? As this is a Major Affect to interfere with a Smooth running F75 .
If your initial set up Area is around Buildings or the like Try going to a more Country Type Area and see if you can set it up Stable running there, if you can that will give you a Clue as to the Problem of heavy interference .
The answers to these questions, can be of great help in possibly helping people who get (natural) set up problems, as lots of people tell us their difficulty`s ,but fail to give us their settings what they were using when encountering the problems, so it`s then hard to try to evaluate the reason of their difficulties..

 

[jbow]

I was in DE, sens around 70, 1 2F, and 4 tone. I fastgrab often with both this and the T2. I am used to it already because I have used a T2 for over a year. The mineralization is extreme in some places here but the F75 is usable right under the power lines feeding my home. The problem I was having was just chatter everywhere I hunted after a while. (Not under powerlines, I just walked under there to check it out and they caused no problem). I thought it was because I had some notches set and according to Vlad, yes the notches will cause iit to chatter just like the disc. I reset and it stopped. However, yesterday it started again with no notches set and a reset stopped it again. After the reset can run the sens at 80 and it is dead quiet in every mode except JE as long as the disc is between 5 and 20. Yes it falses a lot in most of the tone settings except for one and 2F, i have not tried 1F. I still use 3h and 4h a good bit too. I like DP on the F75 a lot better than I do on the T2 except that nickles give a low tone in DP.

I changed the stock batteries to Oxyrides and so far it has not started to chatter again. In any case, if i have to reset a couple of times in a day, I don't mind.

I will also say that the F75 is no T2, it is a much better machine than the T2. Yes, it false's a lot but that is not chatter. It does take some getting used to however. When I bought my T2 I had been using mostly a SovereignGT and had used a Tejon for a couple of months. You talk about a difference. Try going from a SovereignGT to either a T2 or an F75. I can certainly see why people think that there is something wrong with the machine! It's ok, i'll just go hunt behind them!
Thanks for asking about my settings. I hope there is enough info. The first time the chatter started it was at several sites before I tried the reset so the mineralization and interference was not an issue. As i get more use I will post what I think and some finds. I need a new site to hunt with this thing!

Update: Since I changed batteries I have not had a problem.

Julien

 

[Jeb NWR]

If you are working under power lines I personally believe from my Experiences using the F75 ,that that ,will be the Cause of Your chatter. The F75 is picking up Electrical interference from them OR from something in your imediate vicinity to cause the chatter.Some times I can work under powerlines IF they are not Carrying power at the time.
I again personally do not see Why you should have to Re set it every so often as to the amounts you are doing. . That is not Normal Practice. I`ve never in 10 months had to Touch my re set . I would suggest that you have the detector Checked over as you appear to be having this resetting to do.
I again can`t see where setting the Notch is anything to do with reducing Chatter .
All Notch is, Is a " Window of Discrimination " . It should not affect the Chatter aspect of the F75. Sensetivity would affect the amount of chatter but not Discrimination. There`s something not sounding right in all this, but i would by what you have described to us say its either a Fault on board your detector or your getting too much electrical interference or static probs.
But this is just my theory for what it`s worth and without being there to see the problem happening it`s not easey to finger the causes. , But i`d still send the Tector off to be Checked out .

 

[jimmyk]

Have you tried to change the frequency under the power lines? Just a thought. I've heard that can help.

keep on diggin'

jimmyk in Missouri

 

[jbow]

I have walked under some to see if it was a problem and there was none.

J

 

[Low-Boy/LCPM]

Chatter is not a bad thing. It is from the chatter that comes that nice hit that turns out to be a keeper. The f75 is very sensitive and so it talks a lot to you. But it is far better then the other detectors I have had.

I have tried turning down my sens below say 40 and missing targets. Try finding a target mixed with iron that is in bad ground with say a sens of 75 or above. Then lower it to 40 or lower and see if you can hear it. In Calif and only in grass can I turn the sens real low in trash and find targets. But for relic hunting it is the opposite. So chatter is not a bad thing less you have a bad machine.

 

[jbow]

I'm not talking about ground chatter but chatter even swinging in the air. Not interference because it completely goes away after a reset even with higher sens. It seem's to happen after I go into JE and use notch settings. It's like it does not completely go back to DE or something.
I agree about hearing everything. Like I said, i've used a T2 for over a year so I am used to the way they act.

I don't mind using the pre-set now and then as long as it works. All things considered, the F75 is one major detector, way better than the T2.

Thanks,

J

 

[jim tn]

You know what is good and bad kind of chatter. Having to occasionally reset, though, does not seem right. I've had a couple of instances where my f75 did become erratic and chattery do to low flying aircraft, but only for a few seconds and then it settled back to normal. Resetting was not necessary to achieve this. Maybe changing the batteries has helped. Good luck! HH jim tn

 

[jbow]

But for now it works and it's better than sending it back. If it keep's it up I will send it back when it is too cold to hunt. I have talked to a few others who have had to use the reset too but still, I agree, I shouldn't have to.
It is one HOT detector, deeper by far than my T2, my SovGT, or my Tejon, and that is saying something!

J